Environmental Science - Study Mode

[#216] This holds a planet's atmosphere close to its surface:
Correct Answer

(B) Gravity

Explanation

Solution: Our atmosphere is a mixture of gases that surround Earth. It is kept in place by the pull of Earth's gravity. If Earth was a much smaller planet, like Mercury or Pluto, its gravity would be to weak to hold a large atmosphere.

[#217] During the afternoon the greatest temperature difference between the surface air and the air several meters above occurs on a:
Correct Answer

(A) Clear, calm afternoon

Explanation

Solution: During the afternoon, the greatest temperature difference between the surface air and the air several meters above the ground occurs on a:
clear, calm day.

[#218] Ideal conditions for a strong radiation inversion:
Correct Answer

(A) Clear, calm, dry, winter night

Explanation

Solution: Ideal conditions for a strong radiation inversion: Clear, calm, dry, winter night.

[#219] Example of primary pollutant
Correct Answer

(D) hydrocarbons

[#220] In a photochemical smog, which gas is an eye and mucous membrane irritant?
Correct Answer

(D) N 2 O

Explanation

Solution: Nitrogen oxides are irritating to the eyes, skin, nose, mucous membranes and respiratory tract.